rig was shut down at the time. >> the environmental threat, as we know, there was 20 gallons that potentially were in that 3-inch line, which would equate to approximately 28 gallons of product. >> reporter: not even enough to fill a large suv's gas tank. in comparison, bp's deepwater horizon disaster, 2 1/2 years ago, spilled enough daily to fill the gas tanks of 82,000 suvs. and just a few hours ago, two more boats actually doubled in size arrived on the scene to help with the search. which is a 45-mile, by 30-mile radius. the weather has been cooperating. there are no storms in sight. so, they do have a clear line of vision. hopefully, these two workers will be found soon. dan? >> one bit of good news there. john, thank you. now, to the middle east on the brink this morning. the israelis have been firing hundreds more rockets into gaza, with hamas firing back.